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Wheat is a major rabi crop in Kota district of Rajasthan covering more than 50 per cent sown acreage. To demonstrate the existing production potential of improved variety Raj-4079 and technologies, frontline demonstrations were conducted on wheat crop by Krishi Vigyan Kendra, Kota during rabi 2016-17 to 2019-20 on 150 farmer fields. Major interventions under demonstration consisted of improved variety Raj-4079, seed treatment with carbendazim50 WP @2.0 g/kg-1seed & inoculation of Azotobacter & PSB culture, optimum seed rate 100-120 kg ha-1, recommended doses of NP (120-40 kg ha-1) with proper scheduling, soil application of zinc sulphate @ 25 kg ha-1 and need based weed management. Study of four years data reveled that demonstrated technologies recorded mean grain yield of 50.55q ha-1 which represents 12.20 per cent yield enhancement over local check (45.06 q ha-1). Economic analysis confirmed the feasibility of the demonstrated techniques. Mean additional cost of improved technologies recorded to be Rs.1098 ha-1 which in turn, provided average addition returns of Rs. 8315 ha-1. Improved techniques on pooled basis, fetched net returns of Rs.61170 ha-1 with B:C ratio of 3.09, higher in comparison to local practice (Rs.52856 ha-1, B:C ratio 2.87). Analysis of yield gap shows average extension gap of 5.50 q ha-1 which clearly emphasizes the need for bridging existing extension gap through transferring the improved technologies. Values of technology gap ranged from 11.07 to 15.40 q ha-1, with a four years mean of 13.20q ha-1while technology index in the present study varied between 17.66 to 24.72 per cent.

Enhancement of yield and economic returns of Wheat (Triticum aestivum L) through Frontline demonstrations in Kota district of Rajasthan